11203221321200 has 60 divisors (see below), whose sum is σ = 26918206242840. Its totient is φ = 4480877786880.

The previous prime is 11203221321179. The next prime is 11203221321241. The reversal of 11203221321200 is 212312230211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3104711 + ... + 5660889.

It is an arithmetic number, because the mean of its divisors is an integer number (448636770714).

Almost surely, 2^{11203221321200} is an apocalyptic number.

11203221321200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11203221321200 is an abundant number, since it is smaller than the sum of its proper divisors (15714984921640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11203221321200 is a wasteful number, since it uses less digits than its factorization.

11203221321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567154 (or 2567143 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11203221321200 its reverse (212312230211), we get a palindrome (11415533551411).

The spelling of 11203221321200 in words is "eleven trillion, two hundred three billion, two hundred twenty-one million, three hundred twenty-one thousand, two hundred".